Primary-battery electrode.



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which the following is in Fig. 1.

CHARLES B. SCI-IOENIVIEHL, F WATERBURY, CONNECTICUT.

PRIMARY-BATTERY ELECTRODE. i -WNW Specification of Letters Patent.

Patented sets. 12, rain.

Application filed April 23, 1912. Serial No. 692,736.

have heretoplied contrivances.

It is therefore the mad the compressed copper oxid in the way 1 and tivity of the element, thereby insuring a high initial, and auniform working E. M. F. of the battery.

Upon the accompanying drawings form- Fig. a, is a central vertical cross sectional View of the electrode shown Fig. 3, is a side view of a perforatcd and'suitable blanked sheet metal reinforcing, member upon which the 0Xid plate is formed in the manner shown in igs. 1 and 2. Fig. 4, shows a further sectional view corresponding with Fig. 2, but

Connecticut, have trode,

including a slightly modified form of perforated sheet metal reinforcement. Fig. 5 is a side view, partially broken away, the reinforcement contained Within the plate shown in Fig. 4. Fig. 6, shows a f rther side view, partially broken further modified form of made from wire netting, and, Fig. 7, is a vertical sectional view of the reinforcement shown in Fig. 6.-

lar or round most conveniently and by employing a flexible mesh sheet of metal that is blanked, c0r rugated, cupped or otherwise formed to best insure the securement as will be obvious.

pon the drawings, represents the metal reinforcement and 11 the perforations or openings therethrough, which latter may size to insure the integral formation of parts of the electhroughout the thickness of its body In Figs. 1, 2 and 3, I have shown a metal perforated sheet points the oppothe loose oxid next filled in around it, and then the die of the press closed together to squeeze the blank and oxid into one solid integral mass. If preferred, these points may be also formed along one or more edges of the reinforcing blank, as shown by 13 along the .bottom edge of the sheet shown in Figs. 1, 2 and 3 whereby the edge portion of the electrode may also be protected against the chipping or breakage.

In Figs. 4 and 5, I have shown a perforated sheet metal blank that is bent cross- Y wise to form transverse dovetail rigidly supported, and by pockets 12* in the opposite sides of the sheet and into which the oxid is filled, pressed Iand w an electrode may be formed in accordance with my invention, and the metal reinforcement not appear 'upon the face of the finished electrode. Figs. 6- and 7 are designed to illustrate of a piece of wire netting sheet metal in the carrying in this instance cups l2 punched in the opposite side of the wire reinforcement to form pockets to receive and better support the attached oxid. In

for out of my have shown practice this metal reinforcement is formed very yield, 0 and come to conform to any unevenness of pressure due to possible excessive quantities of oxid on different portions of the face of the reinforcement so as to insure a finished negative electrode of uniform density and thickness throughout.

Having thus described my invention what I claim and desire to secure by Letters Patent is l. A compressed oxid of copper negative electrode having a perforated reinforcing sheet therein, and having extended points to overlap the face and edge portions of the electrode.

2. A negative electrode for primary batteries, comprising a mass of oxid of copper and a centrally arranged sheet metal reinforcing member embedded therein and having a series of openings therethrough to adthe solid formation of the oxid therethrough and having extended points to extend through and overlap the edge portions of the electrode. I

Signed at Bridgeport in the county of Fairfield and State of Connecticut this 22nd day of April A.- D., 1912.

CHAR-LES B. SCHOENMEHL. Witnesses:

C. M. NEWMAN, RUTH M. Wonnmv. 

